... dielectric properties for each combination of operational parameters. The accuracy of the numerical modeling results was validated against an established magnetic dipole solution. For a standard tool configuration and operational frequencies, i.e., 2 MHz, the sensitivity of formation dielectric constant...

... of permeability can often be made. In this work we utilize high resolution X-ray CT images Berea and Bentheimer sandstone and simulate the NMR relaxation-diffusion responses for the case of drainage by a non-wetting fluid at different magnetic field strength (2MHz, 12 MHz, and 400 MHz), calculating internal...

... common measurements are wireline induction (10 – 100 kHz) and LWD propagation resistivity (0.4 MHz – 2 MHz). Methods suggested in the literature to analyze data subject to this effect range from simply assuming Rt is the deep 2 MHz attenuation resistivity to applying a CRIM (complex refractive index...

... and receiving coils of finite diameter embedded in a concentric cylindrical structure. Important details of the forward model used in the calculations are also provided. invasion response mhz well logging resistivity borehole effect attenuation current density antenna resistivity tool...

... 2 , and the measurement conditions for which T 2 gives meaningful petrophysical information. well logging gradient spe 26470 sandstone mhz carbonate upstream oil & gas nuclear magnetic resonance log analysis magnetic resonance society of petroleum engineers pore size...

... ABSTRACT A laboratory measurement system for determining the dielectric constant and resistivity of reservoir rocks is described. The system is composed of a computer–controlled RF analyzer and a capacitive sample holder, which operates in the frequency range from 2 MHz to 100 MHz. The sample...